JP2017077381A - Insole for improving force/power exerted by lower extremity - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an insole capable of easily improving force/power exerted by a lower extremity in sport and exercise.SOLUTION: An insole 100 is installed in a shoe 10 and has a prescribed thickness H. The insole is formed by cutting a front end part A including an area of a distal phalanx aof a great toe (a) and areas of respective middle phalanxes b-eof a second toe b to a fifth toe e out of a toe-part area S1 of an insole body 101, downward bending and locking the distal phalanx aof the great toe (a) and the middle phalanxes b-eof the second toe b to the fifth toe e of a toe part 2 of a shoe wearer with respect to cut end face 102, and holding the toe part 2 by the insole body 101.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an insole that can easily improve the power and power exerted by a lower limb during sports and exercise.

  An insole (insole) inserted into a shoe is used for the purpose of reducing foot fatigue, improving exercise ability, etc. by improving the fit, support and cushioning of the foot during walking and exercise.

  For example, on the contact surface of the insole, the insole (Patent Document 1) provided with a central convex part and concave parts on both sides of the insole so as to reduce the load on the foot and the body wearing shoes, and an upper surface provided on the upper surface Insole (Patent Document 2) having a hard plate on the lower surface of the cushioning insole body to improve landing stability and shock absorption, at least between the upper and lower sheet members in the buttocks region Insoles (Patent Document 3) are proposed in which corrugated sheet members are provided to reduce cushioning and weight.

JP2015-85134A JP 2012-245029 A JP 2009-233260 A

  By the way, the present inventor has conducted research on the ankle joint of bicycle pedaling exercise for many years. Previous research on ankle joints in the three lower limb joints (hip, knee, foot) used in bicycle pedaling exercises (Physical Strength Science (2004) 53, 221-234, “Difference between ankle plantar flexion and dorsiflexion during pedaling movements) Effects of lower limbs on joint dynamics and crank torque ”Hidenori Akabane et al., 1999“ Daisuke Imanaka's Road Bike Technique & Training Manual ”28-29, etc.) When the ankle is fixed and pedaled, the angular velocity and work rate of the hip joint movement increase, and at a constant work rate (around 160 W to 250 W), the ankle joint (bottom flexion and dorsiflexion positions) ) It is important to keep it in the middle position and do not move too much. Bicycle athletes, which are said to be first-class, fix their ankle joints in the middle position for efficient pedaling. Kina it like that is known so as not to cause the bottom 屈背 flexion. Here, in the movement of the ankle joint, the plantar flexion refers to a movement that straightens the front from the ankle and the dorsiflexion refers to the opposite movement.

  Based on the knowledge of the above-mentioned previous research, the present inventor further pursued research on the ankle joint of bicycle pedaling exercise, and as a result, the movement of the ankle joint was fixed in a narrow range and the force of the knee joint and the hip joint was exhibited. The present inventors have found a simple method that can facilitate and exert great power and power of the lower limbs, and have completed the present invention.

  An object of the present invention is to provide an insole that can easily improve the power and power exerted by the lower limbs during sports, walking, and exercise.

  In order to solve the above-mentioned problem, an insole according to the present invention is an insole that is worn in a shoe and has a predetermined thickness, and is a distal phalanx region of a first heel in a toe region of the insole body. The front end portion including the middle phalanx regions of the second to fifth toes is excised.

  During sports, walking, and exercise, the shoe wearer bends the distal phalanx of the first heel and the second phalanx to the middle phalanx of the second heel to the bottom of the insole body. The phalanges can be hooked on the resected end face of the front end portion to grip the toes. As a result, the ankle joint is fixed during walking and exercising, so that the knee and hip joints can be easily exerted, and the power and power exerted by the lower limbs are improved.

  In the insole according to the present invention, the cut end surface of the insole body is provided at a position passing through the first joint region of the first heel and the second joint region of the second heel to the fifth heel in the toe region of the insole body. It is characterized by.

  The insole according to the present invention is characterized in that the cut end surface of the insole main body is processed to be non-slip or uneven according to the shape of a shoe wearer's toe.

  In the insole according to the present invention, a hard material is used for the lowermost layer of the insole body and a flexible resin material is used for the upper layer, and an arch support part that rises in an arch shape is formed in the lower arch region. Features.

  An insole according to the present invention is an insole that is worn in a shoe and has a predetermined thickness. The front end of the insole body is connected to the second heel or second phalanx from the distal phalanx of the first heel of the shoe wearer's footpad. It is characterized by being cut so as to be able to bend downward in the middle phalanx of the fifth heel.

  As described above, by using the insole according to the present invention, the shoe wearer can use the first rib of the first heel to the second heel to the second heel or foot during sports, walking, and exercising. Because it is possible to grip the toes by hooking on the resection end face of the front end of the insole body over each middle phalanx of the fifth heel, fixing the ankle joint makes it easy to exert the force of the knee joint and hip joint, and simple means Can improve the power and power exerted by the lower limbs during walking and exercise.

  Thereby, the wearer of shoes has the outstanding effect that an athletic ability and walking ability can be improved and health promotion can be aimed at.

1 shows an embodiment of the present invention, (A) is a plan view of an insole according to the present invention, (B) is a side view thereof, (C) is a front view thereof, The top view which shows the arrangement | positioning relationship between the insole shown in FIG. 1, and an ankle joint, FIG. 3 is a side sectional view showing a gripping posture of a toe with respect to the insole shown in FIG. 1; The figure which shows the example of a three-layer structure about the insole shown in FIG. Side sectional view showing the posture of the toes relative to the conventional insole, A graph showing the maximum power during maximum pedaling, The continuous photography figure which shows the movement of the ankle joint at the time of the maximum pedaling exercise by the wearer of shoes equipped with the insole of the present invention, It is a continuous photography figure which shows the motion of the ankle joint at the time of the maximum pedaling exercise | movement by the wearer of the shoe | wearing with the conventional insole.

  Next, the best embodiment of the insole according to the present invention will be described with reference to the drawings. FIG. 1 is a view showing the appearance of an insole according to the present invention, FIG. 2 is a view showing the positional relationship between the insole and an ankle joint, and FIG. 3 is a view showing a gripping posture of a toe with respect to an insole mounted in a shoe. . In these drawings, reference numeral 10 denotes shoes, and reference numeral 100 denotes an insole.

  First, the insole 100 will be described. The insole 100 is attached to the shoe 10 as an insole of the shoe 10, and has a certain thickness H and a predetermined length L from the front end to the rear end as shown in FIG. The insole body 101 is formed with a toe region S1 at the front, a middle foot region S2 at the center, and a buttocks region S3 at the rear.

As shown in FIG. 1, the insole body 101 has a front end portion A (shown by a dotted line) of the toe region S1 cut away from the inner shell side to the outer shell side. As shown in FIG. 2, the position of the resection line corresponds to the first joint a ₁₂ of the first heel (thumb) a and the second joint 2 in the toe portion 2 (see FIG. 3) of the ankle portion 1 with respect to the insole body 101. The positions pass through the vicinity of the second joints b _{23 to} e _{23 of} b to 5th 趾 e.

Then, the cut end surface 102 of the insole body 101 includes the first joint a ₁₂ of the first heel (thumb) a and the second joints of the second heel b to the fifth heel e in the toe portion 2 of the ankle joint portion 1. As a result of being provided at the positions passing through b _{23 to} e ₂₃ , the shoe wearer, as shown in FIG. 3, in the toe portion 2 of the ankle joint portion ₁ , The middle phalanges b _{2 to} e ₂ of the _second heel b to the fifth heel e are bent downward along the resection end face 102, respectively, and the toes are hooked on the resection end face 102 of the insole body 101. Can be firmly gripped.

  The angle of the cut end face 102 is 45 to 135 degrees, more preferably 75 to 105 degrees with respect to the upper and lower surfaces of the insole body 101 so that the shoe wearer can securely grip the toe portion 2 with respect to the insole body 101. It is desirable to set. For the same reason, the thickness H of the insole body 101 is desirably 8 mm or more, more preferably 10 mm to 12 mm. However, the thickness can be reduced by selecting a material.

In addition, if supplementarily explaining the ankle joint portion 1 with respect to the insole body 101, as shown in FIGS. 2 and 3, the toe portion 2 of the ankle portion 1 is located in the toe region S 1 of the insole body 101. The middle bone 3 of the ankle joint 1 is disposed in the middle bone region S2, and the hip 4 of the ankle joint 1 is disposed in the hip region S1 of the insole body 101. Among the toes 2, the first heel a includes the distal phalanx a ₁ and the proximal phalanx a ₂ , and the second heel b to the fifth heel e include the distal phalanges b _{1 to} e ₁ and the middle phalanx b _{2 to} e. ₂ and proximal phalanges b _{3 to} e ₃ . Reference numerals a _{4 to} e ₄ are metatarsals, respectively.

  As the material of the insole body 101, synthetic rubber, synthetic resin, or the like is used. The example of the insole body 101 shown in FIG. 4 has a three-layer structure, and the lower layer 101A is made of a hard material (plastic, carbon, etc.) so as to be easily caught when the toes are gripped. A slightly soft material (EVA resin or the like) is employed so as not to cause pain when grasped, and a material such as wool is employed for the surface layer 101C so as to provide a refreshing comfort. As for the thickness of each layer, for example, the lowermost layer is 6 mm, the upper layer is 1.5 mm, the surface layer is 0.5 to 1 mm, and the whole is thinned. The lowermost layer 101 </ b> A follows the shape of the arch region of the toe portion 2 in order to maintain the holding posture of the insole body 101 by the toe portion 2, and the shape of the arch region under the holding posture of the insole body 101 by the toe portion 2. Thus, an arch support portion of a hard material that rises like an arch may be formed. A cushioning material may be inserted into the buttocks region.

The incised end surface 102 of the insole body 101 is further provided with a non-slip material or a hard material on the excision end surface 102 in order to further increase the toe's hooking certainty. Furthermore, as the middle phalanx b ₂ to e ₂ of the distal phalanx a ₁ of the first toe a second toe b~ fifth toe e is deeply hooked on resected end face 102 respectively, according to the shape of each finger The cut end face 102 may be processed to be uneven.

According to the insole 100 having the above-described structure, the shoe wearer makes the distal phalanx a ₁ and the second heel b to the fifth heel e of the first heel (thumb) a of the toe portion 2 with respect to the insole body 101 in the shoe 10. The middle phalanges b _{2 to} e ₂ can be bent downward along the cut end face 102, respectively, and the insole body 101 can be firmly held by the toe portion 2. Then, the ankle joint is fixed by gripping the toe part 2 and the knee joint and the hip joint are easily exerted. As a result, it is expected that the lower limbs exert a great force and power.

  Specifically, as an effective exercise and its effect, by using the insole 100, the bicycle can be rotated more quickly than a conventional insole in a pedaling exercise of a bicycle, and the jump height in a vertical jump or the like is increased. It can be expected that the stride during walking and running increases.

  FIG. 5 shows the posture of the toe portion 2 of the ankle joint 1 with respect to the shoe 10 on which the conventional insole S is mounted. Although it cannot be said that the conventional insole S is gripped by the toes 2, the shoe 10 equipped with the insole 100 of the present invention shown in FIG. You can see that Thereby, in the insole 100 of this invention, the fixed attitude | position of the ankle joint part 1 is easily realizable.

  The present inventor uses a bicycle inexperienced person (general person) and a person who has experienced a bicycle race as a test subject, wears the conventional insole and the insole of the present invention on a shoe, performs full-power bicycle pedaling exercise, and performs maximum work during maximum pedaling. Each rate (W) was measured.

Here, the maximum work rate (W) is the power (watt) exhibited by the competitor during the maximum pedaling, and the power is obtained according to the following equation.
Power (W) = 0.105 x Torque (N · m) x Number of revolutions (rpm)

  As shown in FIG. 6, the conventional insole has a maximum power of about 1420 W during maximum pedaling, whereas the insole of the present invention has been improved to about 1460 W. The data in FIG. 6 is from a person who has never experienced a bicycle race, but similar data was obtained even for those who have experienced a bicycle race.

  The difference in the data in FIG. 6 is explained by whether or not the ankle joint is fixed. In the maximum pedaling movement by the conventional insole in FIG. 8, the tip of the foot moves upward when the foot is pushed down during pedaling (from the right in FIG. 8). On the other hand, in the maximum pedaling movement by the insole of the present invention in FIG. 7, even when the foot is pushed down during pedaling, the foot is not leveled up and is kept almost horizontal, and the ankle joint is fixed (right of FIG. 7). From the third sheet) It is thought that the difference in the presence or absence of fixation of the ankle joint appeared as the difference in the maximum work rate.

  As described above, by using the insole of the present invention, the ankle joint is fixed by grasping the toe portion during sports, exercise, walking or running, thereby exerting the power of the knee joint or the hip joint. As a result of being easy, it is possible to exert great power and power of the lower limbs, improve exercise ability and walking ability, and promote health.

  The insole according to the present invention can be widely used as an insole used by attaching to shoes for various uses such as sports, exercise, walking, running, and mountain climbing.

DESCRIPTION OF SYMBOLS 1 Foot joint part 2 Toe part 3 Middle bone part 4 Hip part 10 Shoes 100 Insole 101 Insole main body 102 Resection end surface S1 Toe part area S2 Middle foot part area S3 Hip part area A Front end part ae e 1st to 1st to 1st 5 ａ a _{1 to} e ₁ distal phalanx b _{2 to} e ₂ middle phalanx a _{3 to} e ₃ basic phalanx a _{4 to} e ₄ metatarsals

Claims (5)

  An insole that is mounted in a shoe and has a predetermined thickness, and each of the middle phalanx regions of the second heel to the fifth heel from the distal phalanx region of the first heel to the toe region of the insole body. An insole comprising a front end portion cut off.   The cut end face of the insole body is provided at a position passing through the first joint region of the first heel and the second joint region of the second heel to the fifth heel in the toe region of the insole body. The insole according to claim 1.   The insole according to claim 1 or 2, wherein the cut end surface of the insole body is processed to be non-slip or uneven according to the footpad of a shoe wearer.   A hard material is used for the lowermost layer of the insole body, and a flexible resin material is used for the upper layer, and an arch support portion that rises in an arch shape is formed in the lower arch region. The insole according to claim 3.   An insole that is mounted in a shoe and has a predetermined thickness, wherein the front end portion of the insole body is connected to each middle segment of the second to fifth heels from the distal phalanx of the first heel in the shoe wearer's toes. An insole characterized by being cut so as to be able to bend downwards over bones.